C Programming language Keywords

The identifiers listed in Table are reserved C keywords. You shouldn't use them for any other purpose in a C program. They are allowed, of course, within double quotation marks.

Also included is a list of words that aren't reserved in C but are C++ reserved words. These C++ reserved words aren't described here, but if there's a chance your C programs might eventually be ported to C++, you need to avoid these words as well.